Tag: sea level

Water is rising

A friend from Los Angeles mentioned when visiting us a few days ago that he had recently seen a striking performance at UCLA by dancers from the Pacific islands of Tuvalu, Tokelau and Kiribati. Climate change figured strongly in the concert, which was part of a project called Water is Rising. Intrigued, I tracked down the project website and to my delight discovered a video of the live performance at UCLA (presented above). I say delight advisedly because I was unable to tear myself away from the 90-minute performance once I’d begun to watch it, captivated by its dance and song and moved by the simple human appeal that accompanied it. The performers were bringing their unique cultural art to American audiences, but they were also haunted by the deep threat to their cultures of the rising sea levels and they had a clear message to go with their performance.

It’s a message which I think we in the developed world need to hear over and over again. I’ve therefore transcribed some of the introductory words of the leaders of the three groups. They were not carefully crafted, the speakers felt for their words, and the English syntax was not always perfect, but the plea was all the more telling for that. The Tuvalu leader, gesturing towards the performers:

These are the human face of climate change. We are the most vulnerable people to climate change and we are here with a simple message to you all – for you to give us a hand, for your minds to feel with us, your hearts to be with us. We are here to represent our countries…we [Tuvalu] are small, we are only 24 square kilometres land mass.  No mountains for us to hide ourselves when it comes to sea level rise…we are only three to four metres high. Please think of us, and enjoy yourselves.

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Wake of the flood (first reprise)

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Thailand is experiencing its worst monsoon flooding for at least 50 years. The NASA Earth Observatory image above shows the waters piling up to the North of the capital Bangkok, which is already beginning to experience flooding (visit the EO page to see a comparison with earlier floods, and The Guardian for a striking set of flood pictures). The Thai government yesterday declared a five day weekend to allow the city’s inhabitants to make preparations. The intense monsoon season has also brought extensive flooding to Cambodia and northeastern India over the last couple of months, and destroyed a significant part of SE Asia’s rice crop. On the other side of the planet, heavy rain and flooding has been affecting Mexico, El Salvador, Costa Rica, Honduras, Guatemala, and Nicaragua. Jeff Masters reported that in the ten days up to October 20th, Huizucar in El Salvador received an astonishing 1.513 metres of rain.

At first glance, it looks like a continuation of the remarkable series of extreme weather events — especially heavy rainfall and flooding — that we’ve seen over the last few years. But apart from the human suffering and economic dislocation being experienced around the world, it appears there’s another interesting consequence of all this precipitation — it’s causing global sea level to fall.

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The Climate Show #20: the boys are back (on Tuvalu)

Battling against rural broadband that resembled digital molasses (or the bunker oil being pumped out of the Rena), Gareth returns to NZ and joins Glenn Williams and John Cook to discuss drought in Tuvalu, the El Niño Southern Oscillation (ENSO), floods and sea level falls, ocean cooling (that isn’t), solar towers of power and much, much more…

Watch The Climate Show on our Youtube channel, subscribe to the podcast via iTunes, listen to us via Stitcher on your smartphone or listen direct/download from the link below the fold…

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Not a pretty picture: recent science summarised

A valuable review, Climate Science 2009-2010, has just been published by the World Resources Institute. It’s a summary of major peer-reviewed research in climate change science and technology during those two years. Aimed at policymakers, the NGO community, and the media, it offers succinct summaries of the findings of a wide array of scientific papers, a short discussion of the implications of each paper, and brief overviews along the way of where the research is pointing.

It’s 48 pages in length, not a quick read but tailored for easy comprehension for anyone with a general lay understanding of climate science.  A sample list of some of the findings is provided at the start, but the full survey is well worth reading through. The range of papers is a reminder of how much scientific work is being done and how the full picture is built from many studies and a great variety of detailed investigations. The review is restrained in its drawing of implications from the studies, often pointing to the need for further investigation and certainly not hyping any of the results. Nevertheless it’s apparent that the recent research continues to reveal grim prospects for humanity as emissions continue to rise.

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Sea level rise and the Christchurch rebuild

Jim Salinger delivered a timely warning in Christchurch this week when he pointed out that the city in its rebuild would be wise to work to at least a one metre estimate for sea level rise rather than the current estimate of 50 cm.

There’s a report on the Stuff website, and in the Waikato Times print edition there was a little more that evidently didn’t make it to the website.

The 50-centimetre estimate on which the council currently works is based on outdated science, Salinger said. Estimates of how much ice is melting in Greenland and Antarctica are more definite and the reviews are saying that we’re looking at a 50 to 160 cm sea rise. Some local bodies in Australia are now using a one metre estimate.

He illustrated with reference to areas like Brooklands “where you have the Waimakariri [River] coming out to the sea. You can have floods coming down the river at the same time as a storm surge, and they’re really at a lot of risk from inundation and flooding.”

In the Waikato Times piece he also referred to push-back from the insurance industry. “They may say, ‘If you build there we won’t insure you because the risk is too high’.”  The paper reported that Salinger had met with council staff the previous day to press the case for a one metre estimate, with a response from the council that it was “considering its options” and “would take Dr Salinger’s comments into account”.

Let’s hope they take them very seriously into account and incorporate them into their plans. It would be a supreme irony if the Christchurch rebuild paid attention to seismic safety but overlooked vulnerability to sea level rise. The infrastructure implications for New Zealand carried by a rising sea level are very great and very costly and will extend long into the future if global temperatures are permitted to rise to the height currently in prospect. If the Christchurch rebuild offers opportunity to pre-empt any of those future threats and costs, that’s an opportunity to be grasped.